I know that several people are attempting bottle-fermented cocktails. Here's one program from Jeff Josenhans at the US Grant Hotel in San Diego that's about to come online.
THE US GRANT's award-winning Mixologist, Jeff Josenhans, has taken his mad-scientist cocktail crafting skills to a new level: straight to the basement of the hotel. After many hours of experimenting with various bottling processes, Josenhans is the first mixologist to successfully craft bottle conditioned cocktails combining the beer and champagne method of fermentation.
Launching as "Cocktails Sur Lie," (Sur lie is a French wine-making term that means having been rested on its yeast), he has combined the highly complex (and rarely attempted) process of the champagne method with the brewer's method, adding yeast to the bottle and allowing the bottle pressure to create carbonation, then spirits and sugar are mixed in according to the champagne method while the hopping process adds the brewer's flare.
A sneak preview of the Cocktails Sur Lie are currently on the week-long Autumn Mixology Dinner menu (names and ingredients below) but you'll soon be able to find the new flavors of 'Cocktails Sur Lie' on the Grant Grill's January cocktail menu.
-"Mule in a Bottle" made from Garden Flower Infused Vodka, Ginger, Rock Candy Sugar, California Hops and Champagne Yeast.
-"Smokin’ Pumpkin" (a take on his current seasonal cocktail featured on the Food Network, the Smashing Pumpkin) – Pumpkin Infused Rum, Allspice Dram, Applewood Smoked Coconut Sugar, Dash Laphroiag 15 yrs, Saffron and Vanilla (unhopped), Ale Yeast